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This will automatically catch thread names in several of the
child processes we are after, and it also catches the name
for a webkcore thread.

r=rtenneti
Review URL: http://codereview.chromium.org/8558003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@109898 0039d316-1c4b-4281-b951-d872f2087c98